Structural optimal design of a swing vane compressor

doi:10.1007/s11708-016-0449-z

Front. Energy

2019, Vol. 13

Issue (4) : 764-769 https://doi.org/10.1007/s11708-016-0449-z

RESEARCH ARTICLE

Structural optimal design of a swing vane compressor

Junjie MA(

), Xiang CHEN, Zongchang QU

School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China

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Abstract

In this paper, a novel swing vane rotary compressor (SVC) was introduced, which had significant advantages—simple mechanism, reduced frictional loss, reliable operation, and a comparatively higher compression ratio. Based on the swing vane compressor geometry model, thermodynamic model and kinetic model, the mathematical model of optimum design was established, and further theoretical and experimental studies were conducted. The length of the cylinder, radius of the rotor and cylinder were defined as design variables and the reciprocal of EER as objective function. The complex optimization method was adopted to study the structure of the swing vane compressor. The theoretical model could provide an effective method for predicting compressor performance, which would also contribute to structural optimization of the SVC. The study shows that the friction loss of the compressor are greatly reduced by optimized design in a given initial value, and the EER increased by 8.55%.

Keywords swing vane compressor simulation optimization design

Corresponding Author(s): Junjie MA

Just Accepted Date: 14 November 2016 Online First Date: 08 February 2017 Issue Date: 26 December 2019

Cite this article:

Junjie MA,Xiang CHEN,Zongchang QU. Structural optimal design of a swing vane compressor[J]. Front. Energy, 2019, 13(4): 764-769.

URL:

https://academic.hep.com.cn/fie/EN/10.1007/s11708-016-0449-z
https://academic.hep.com.cn/fie/EN/Y2019/V13/I4/764

Fig.1 Structure of SVC

Fig.2 Working process of SVC

Fig.3 The description of the complex method

Tab.1 Scope of design variables

Fig.4 Compressor chamber pressure

Fig.5 Compressor chamber pressure

Fig.6 Change of chamber temperature

Fig.7 Change of chamber mass

Tab.2 Values of parameters

Fig.8 Change of objective function

Fig.9 Change of error vector

Fig.10 Change of vector |f_max?f_min|

Fig.11 Change of EER

A	valve flow area /m²
b	thickness of vane /m
C_d	discharge coefficient
e	eccentric distance /m
F	force /N
H	height of rotor /m
L	length /m
L_f	frictional loss /W
m	mass of fluid /kg
n	rotational speed of compressor /(r·min^-1)
p	pressure /Pa
Q	heat transfer rate /W
Q₀	cooling capacity /W
R	radius /m
T	temperature /K
U	velocity / (m·s^-1)
V	volume /m³
v	specific volume /(m³·kg^-1)
W_i	indicate work /J
d	clearance /m
q	drive angle /rad
$ε$	bearing eccentric ratio
$η$	kinetic friction coefficient
$μ$	dynamic viscosity of lubricant /(pa.s)
$ω$	angular velocity /(rad·s^-1)
Subscripts:
i	suction conditions
o	discharge conditions
c	cylinder chamber conditions
be	bearing
cl	radial clearance
cy	cylinder
ec	eccentric
ef	at end face
v	vane
r	in radial direction
$τ$	in tangential direction
vs	at vane side
vt	at vane tip

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